A delicious vegetarian version of this popular Korean dish. Serves 2-3 as a main dish and 4-5 as a side dish. Jap chae, also spelled japchae or chapchae, is full of vegetables with vibrant colors, and is stir-fried with glass-looking noodles (dangmyeon), and seasoned with sesame oil, soy sauce, salt and pepper, and a touch of sugar. A favorite Asian comfort food. The packages of noodles usually have 3 bundles in them. You only need one bundle for this recipe. The trick to this recipe is to stir fry the vegetables separately to build the flavors. By frying them individually, the flavor and color of each vegetable is preserved without any cross blending of the other ingredients. Enjoy! Adapted from Alice of Savory Sweet Life, as posted at Herbovoracious by Michael Natkin. In Korean cuisine, glass noodles are usually made from sweet potato starch, in Japan potato starch, in Vietnam mung bean starch.